USP

US Polymers Inc, a California-based member of the Harwal Group, has been serving customers since 1983 with high-quality, US made building products. Our operations span five key divisions.

• Building Materials – Vinyl & aluminum fencing, patio covers, decking, railing, gazebos, PVC wall & ceiling panels, and pipes.

• Custom Profiles – Window, marine, RV, mobile home, and electrical solutions, plus our innovative Built On-Site Systems (BOSS).

• Window Shutters – Vinyl, wood, and poly plantation shutters.

• Storage Solutions – Vinyl & metal sheds, garages, glass garden rooms, insulated buildings, garage work benches, and deck boxes.

• Built On Site System Homes – Complete housing solutions for builders, homeowners, and cities.

With decades of experience, advanced extrusion capabilities, and a commitment to innovation, US Polymers delivers eco-friendly, recyclable, and maintenance-free products that meet ISO 9001 and ASTM standards. We recycle millions of pounds of polyvinyl annually, helping reduce environmental impact while providing long-lasting alternatives to wood.

Proudly manufacturing in Southern California, we create jobs in the USA and back our products with industry-leading warranties. Choosing US Polymers means choosing quality, value, and sustainability.